GB897621A - Acoustical diaphragm - Google Patents

Acoustical diaphragm

Info

Publication number
GB897621A
GB897621A GB33210/60A GB3321060A GB897621A GB 897621 A GB897621 A GB 897621A GB 33210/60 A GB33210/60 A GB 33210/60A GB 3321060 A GB3321060 A GB 3321060A GB 897621 A GB897621 A GB 897621A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
acoustical diaphragm
acoustical
stiffen
diaphragms
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB33210/60A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB897621A publication Critical patent/GB897621A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/02Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12Non-planar diaphragms or cones
    • H04R7/14Non-planar diaphragms or cones corrugated, pleated or ribbed

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

897,621. Diaphragms. RADIO CORPORATION OF AMERICA. Sept. 27, 1960 [Oct. 29, 1959], No. 33210/60. Drawings to Specification. Class 40 (4). A diaphragm, intended particularly for use in a miniature loud-speaker or a microphone, comprises at least one thin sheet of material having protuberances arranged randomly and asymmetrically in clusters thereon, in order to stiffen the material without defining nodes of vibration therein.
GB33210/60A 1959-10-29 1960-09-27 Acoustical diaphragm Expired GB897621A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US849627A US3073411A (en) 1959-10-29 1959-10-29 Acoustical apparatus

Publications (1)

Publication Number Publication Date
GB897621A true GB897621A (en) 1962-05-30

Family

ID=25306156

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33210/60A Expired GB897621A (en) 1959-10-29 1960-09-27 Acoustical diaphragm

Country Status (5)

Country Link
US (1) US3073411A (en)
CH (1) CH402075A (en)
ES (1) ES262057A1 (en)
GB (1) GB897621A (en)
NL (1) NL257376A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2036394A1 (en) * 2006-06-29 2009-03-18 LG Electronics, Inc. Speaker

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS518732U (en) * 1974-07-05 1976-01-22
JPS51163935U (en) * 1975-06-18 1976-12-27
JPS51163934U (en) * 1975-06-18 1976-12-27
US4013846A (en) * 1975-08-28 1977-03-22 Minnesota Mining And Manufacturing Company Piston loudspeaker
EP0083045B1 (en) * 1981-12-24 1985-11-21 Eckehard Kort Magnetic system with annular air-gap, in particular for woofers
US5181252A (en) * 1987-12-28 1993-01-19 Bose Corporation High compliance headphone driving
CA2023142A1 (en) * 1989-08-23 1991-02-24 Roman Sapiejewski High compliance headphone driving
US6104825A (en) * 1997-08-27 2000-08-15 Eminent Technology Incorporated Planar magnetic transducer with distortion compensating diaphragm
US6929091B2 (en) * 2002-10-28 2005-08-16 Sound Advance Systems, Inc. Planar diaphragm loudspeaker and related methods
US8571227B2 (en) 2005-11-11 2013-10-29 Phitek Systems Limited Noise cancellation earphone
JP2009153103A (en) * 2007-10-02 2009-07-09 Phitek Systems Ltd Component for noise reducing earphone
US20090307730A1 (en) * 2008-05-29 2009-12-10 Mark Donaldson Media enhancement module
US20110002474A1 (en) * 2009-01-29 2011-01-06 Graeme Colin Fuller Active Noise Reduction System Control
EP2226902A3 (en) * 2009-03-06 2013-03-13 Phitek Systems Limited In-flight entertainment system connector
US20110075331A1 (en) * 2009-05-04 2011-03-31 Nigel Greig Media Player Holder
US20110188668A1 (en) * 2009-09-23 2011-08-04 Mark Donaldson Media delivery system
US9818394B2 (en) * 2009-11-30 2017-11-14 Graeme Colin Fuller Realisation of controller transfer function for active noise cancellation
CN102939691B (en) 2010-05-17 2015-08-05 泰雷兹航空电子公司 Airline passenger seat modular user interface device
EP2471710A1 (en) 2010-11-15 2012-07-04 Nigel Greig Media distribution system
CN103748903B (en) 2011-06-01 2017-02-22 菲泰克系统有限公司 In-ear device incorporating active noise reduction
US10034086B2 (en) 2013-03-26 2018-07-24 Bose Corporation Headset porting
US9628917B2 (en) 2014-07-23 2017-04-18 Bose Corporation Sound producing system
USD789911S1 (en) * 2016-03-14 2017-06-20 Chris J. Katopis Earbud

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1097499A (en) * 1914-05-19 Lucy A Young Method of making acoustic diaphragms.
US728382A (en) * 1899-05-23 1903-05-19 John C English Diaphragm for machines for recording of reproducing sound or speech.
US1118345A (en) * 1913-08-07 1914-11-24 Harry W Hess Sound-box for talking-machines.
US1763780A (en) * 1926-06-18 1930-06-17 Samuel W Hatton Acoustic diaphragm
US1917309A (en) * 1931-04-10 1933-07-11 Siemens Ag Diaphragm for acoustic apparatus
US2531634A (en) * 1945-01-11 1950-11-28 Athol E N Lawrance Acoustical diaphragm with stiffening means
GB726780A (en) * 1952-01-19 1955-03-23 Cole E K Ltd Improvements in or relating to sound producing diaphragms

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2036394A1 (en) * 2006-06-29 2009-03-18 LG Electronics, Inc. Speaker
EP2036394A4 (en) * 2006-06-29 2013-05-22 Lg Electronics Inc Speaker

Also Published As

Publication number Publication date
ES262057A1 (en) 1960-12-16
NL257376A (en)
CH402075A (en) 1965-11-15
US3073411A (en) 1963-01-15

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